Selective Coverage Versus Comprehensive Coverage Radiotherapy in Poorly Differentiated and Anaplastic Thyroid Cancer

August 19, 2026 updated by: Chaosu Hu, Fudan University

Selective Coverage Versus Comprehensive Coverage Radiotherapy in Poorly Differentiated and Anaplastic Thyroid Cancer: A Randomized, Controlled, Non-inferiority, Phase 2 Study

To explore the efficacy and safety of selective coverage radiotherapy in poorly differentiated and anaplastic thyroid cancer

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Detailed Description

To explore that selective coverage radiotherapy is non-inferior to comprehensive coverage radiotherapy in terms of locoregional control rate at 12 months in poorly differentiated and anaplastic thyroid cancer, while reducing radiotherapy-related toxicity and improving quality of life.

Study Type

Interventional

Enrollment (Estimated)

72

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

  • China
    • Shanghai Municipality
      • Shanghai, Shanghai Municipality, China, 200032
        • Recruiting
        • Fudan Universtiy Shanghai Cancer Center
        • Contact:
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Age ≥ 18 years old
  • Pathologically confirmed as ATC, thyroid cancer containing ATC components, PDTC (in accordance with Turin criteria), or other thyroid cancers with poorly differentiated components, and the MDT considers the biological behavior similar to PDTC.
  • Evaluated by the MDT and proposed to receive external beam radiotherapy, including postoperative R0/R1, R2 gross residual, inoperable local lesion, and local recurrence.
  • ECOG performance status 0-2
  • expected survival ≥ 3 months
  • major organ functions can meet the requirements for radiotherapy and the proposed systemic treatment.
  • The subject voluntarily participates in the study and signs a written informed consent form, willing to follow up according to the protocol and fill in the quality of life scale.

Exclusion Criteria:

  • Has received radiotherapy to the head and neck or upper mediastinum region in the past, and the target area of this study overlaps significantly with it, and the normal tissue limit cannot be met.
  • Has severe uncontrolled infections, active bleeding, unaddressed airway crises, severe dysfunction of the heart, lungs, liver, kidneys or other diseases that cannot be safely treated with radiotherapy.
  • Pregnant or lactating women; women of childbearing age who do not agree to take effective contraceptive measures.
  • Has other active malignant tumors within 5 years or simultaneously (excluding cured localized tumors such as skin basal cell carcinoma, skin squamous cell carcinoma, superficial bladder cancer, prostate carcinoma in situ, cervical carcinoma in situ, breast carcinoma in situ, etc.)
  • Cannot complete radiotherapy fixation, simulation positioning or follow-up imaging assessment.
  • Other situations that the researcher deems unsuitable for participation in this study.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Selective coverage radiotherapy
Radiation: Selective coverage radiotherapy
  1. GTV or GTV tb 66-70Gy/33-35Fx
  2. High-risk CTV 60Gy: Expand the GTV/GTVtb by 10 mm and adjust according to the anatomical barriers, pre-treatment area were involved if received systemic treatment before radiotherapy；The lymphatic drainage areas where the positive lymph nodes are located, can also be regarded as high-risk CTVs according to MDT decision.
Active Comparator: comprehensive coverage radiotherapy
Radiation: comprehensive coverage radiotherapy
  1. GTV or GTV tb 66-70Gy/33-35Fx
  2. CTV: Expand the GTV/GTVtb by 10 mm and adjust according to the anatomical barriers, pre-treatment area were involved if received systemic treatment before radiotherapy（60 Gy）；prophylactic irradiation was performed on the bilateral neck II-VI regions and upper mediastinum regions based on the extent of lymph node invasion, and the dose was determined according to the risk stratification（54-60Gy）.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Locoregional control rate，LRC
Time Frame: 12 months
The time from the randomization date to the first occurrence of locoregional progression/recurrence. Locoregional regions include the primary thyroid lesion or the postoperative tumor bed, the central region/upper mediastinal related regions, the cervical lymph node region, the retropharyngeal lymph nodes, and the cervical soft tissue contiguous with the original lesion. 12-month LRC is defined as 1 minus the cumulative incidence of locoregional progression over 12 months.
12 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Progression Free Survival，PFS
Time Frame: 12 months
From the date of randomization to the date of the first recording of tumor PD (evaluated according to the RECIST 1.1) or the date of death due to any cause, whichever comes earlier. PD includes local regional recurrence/progression and distant metastasis.
12 months
Overall Survival, OS
Time Frame: 12 months
The time from randomization to death due to any cause.
12 months
Disease Control Rate，DCR
Time Frame: up to 12 months
Defined as the proportion of patients with a complete response, partial response and stable Disease to radiotherapy according to Response Evaluation Criteria in Solid Tumors (RECIST). Applicable to those with measurable lesions.
up to 12 months
Adverse Events
Time Frame: 12 months
All radiotherapy-related adverse events will be documented
12 months
Quality of Life (QoL) by EORTC QLQ-H&N35 questionnaire.
Time Frame: 12 months
Changes in QoL of participants from baseline to up to 12 months after the radiotherapy. Use EORTC QLQ-H&N35 questionnaire.
12 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Fudan University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

August 12, 2026

Primary Completion (Estimated)

July 31, 2031

Study Completion (Estimated)

July 31, 2032

Study Registration Dates

First Submitted

August 16, 2026

First Submitted That Met QC Criteria

August 19, 2026

First Posted (Actual)

August 20, 2026

Study Record Updates

Last Update Posted (Actual)

August 20, 2026

Last Update Submitted That Met QC Criteria

August 19, 2026

Last Verified

August 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • SCOPE

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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